In-service educational models and teamwork

I need help to answer two questions:

1. An in-service educational model has five components: planning, implementing, evaluating, applying, and reevaluating. What is the purpose and importance of each?
2. What do you do with a team that is not working collaboratively? How, for example, would you handle the individual who dominates the project? Likewise, how would you handle the participant who allows everyone else to make the decisions? What are some strategies you could use to develop collaboration?